Advanced timing can cause that to happen
I dirt track race and mine did it once it was because it was running to lean.
The exhaust gasses pass though there, and they're really hot.
the timing is incorrect on your engine, to glow bright red the timing is to far advanced. have the timing reset and you will be good to go.
leaded gas, plug wire off,clogged catlytic converter,dumping raw gas out of exhaust port.
Excessive high idle Excessive lean mixture.
Red means stop. I would suspect it is the low oil pressure light. To find out for sure, open and read your owners manual.
The back of the turbo, is the turbine. It has the hot exhaust gases flowing thru it. The exhaust gases are 1000+ degrees f. and cause the steel to glow red/yellow when under load.
This can be caused by the exhaust valve being either bent, worn or not seating properly. If this is the case then get this checked out A.S.A.P as this could cause severe damage.
Polaris is a red giant star.
The turbocharger turbine housing and exhaust manifold on any state of the art high horsepower (per litre of displacement) diesel engine will glow red as it approaches full load condition.
Normally a blocked catalytic converter or a blocked exhaust will cause that problem. Back pressure, means the gasses cannot escape. thus causing the manifolds to glow.